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257346 (2009 KA3)
Classification: Main-belt Asteroid          SPK-ID: 2257346
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1558309297279095 3.9348e-08  
a 2.39997489873345 1.3311e-08 au
q 2.025984578940171 9.6729e-08 au
i 3.876604692617449 3.9062e-06 deg
node 78.50554968724333 6.6978e-05 deg
peri 137.4688852021198 6.8955e-05 deg
M 4.284142359245775 1.3857e-05 deg
tp 2458984.338939018548
(2020-May-14.83893902)
5.2301e-05 TDB
period 1358.027223527422
3.72
1.1298e-05
3.093e-08
d
yr
n .2650904148039936 2.2054e-09 deg/d
Q 2.773965218526729 1.5385e-08 au
  Orbit Determination Parameters
   # obs. used (total)      314  
   data-arc span      6495 days (17.78 yr)  
   first obs. used      2002-08-13  
   last obs. used      2020-05-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56732  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 23:24:44  

Additional Information
 Earth MOID = 1.02081 au 
 Jupiter MOID = 2.1962 au 
 T_jup = 3.507 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.1   n/a MPO418369  

257346 (2009 KA3)          Discovered 2009-May-20 by Lowe, A. at Mayhill
Reference: 20101128/Numbers.arcLast Updated: 2010-12-06
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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